Means for utilizing liquid fuel in furnaces.



, PATENTED MAY 12, 1903.

J.- BERG. MEANS FOR UTILIZING LIQUID FUEL :IN FURNACES.

APPLIUATION FILED MAR. 27. l RENEWED APR 14, 1903.

2 SHEl'TS-SH EET 1.

No. 728,154. I PATENTED MAY 12, 1903.

LBERG. I MEANS FOR UTILIZING LIQUID FUEL IN FURNACES. APPLICATION FILED MAR. 27, 1902. RENEWED APR. 14, 1903 .no MODEL. 2 sums-sum 2.

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NITED STAT S Patented May 12, 1903,

ATENT OFFICE.

J O ESEPH BERG, OF NEW YORK,

SPECIFICATION forming part of Letters Patent No. 728,154, dated May 12, 1903. Application filed March 27, 1902. Renewed April 14, 1903. Serial No.'152,628. (No model.)

ances for burning fluid or liquid fuel, such as. the liquid hydrocarbons, in furnaces, and

particularly in boiler-furnaces; and it has for its object to provide a construction which may be applied to any ordinary boiler-furnace without the necessity of altering or remodeling the furnace, also to provide against the difficulty commonly arising in smoke-consuming furnaces of the jet-tubes andappliances burning out or sealing from the intense heat produced in the fire-box, and also to provide a construction which will efiect such perfect combustion as to avoid the production of smoke.

Another feature of the inv ention is the means employed for preventing injury to the boiler-plates over the fire-box fromthe in-' 1 is a sectionalelevationof a boiler-furnace,

illustrating the application of my invention thereto. Fig. 2 is a detail view of the burner devices on a larger scale. -,Fig. 3 shows the oil-pan and steam-jet tube in plan. Fig. 4is a sectional detail View of the service-tank for the oil. Fig. 5is a view illustrating a somewhat different construction of the furnace from that seen in Fig. 1.

Referring primarily to Fig. 1, A represents an ordinary return-flue boiler mounted in masonry 'B. O isthe breechiug, which leads the products of combustion to the chimney or stack. D is the fire-box; E, the charging opening or door; F, the ash-pit, and G the grate. These represent an ordinary simple form of boiler and furnace well known to all familiar with this art.

I will now describe my appliances or apparatus for burning liquid fuel in such a manner as to generate steam in the boiler.

1 is an elevated oil-tank, which may be placed anywhere that is most convenient. Fromthis tank 1 is supplied a service-tank 2 by a pipe 3. This is a tightly-closed tank, as here shown, and if closed hermetically it may be placed at a low leveland set in any convenient place. It must be understood that Fig. l is a somewhat diagrammatic and illustrative view and is not designed to show any special arrangement of the oil-tanks with respect to the boiler and furnace. As the parts are allconnected by pipes, it will be understood that the tanks may be disposed as will be most convenient in each case.

From the service-tank 2 an oil-supply pipe 4 extends to the front of the furnace, where it is supplied with an oil or burner pan 5, having substantially the form seen in the section, Fig. 2, and plan, Fig. 3. This burner-pan is mounted on the discharging end of the pipe 4= and forms a sort of mouthpiece therefor. The pipe delivers the oil to a bore or cavity 5 in the pan, and it flows thence into thebasin 5 of the pan, Where it is ignited. A stopvalve 6, suitably placed, controls the supply of oil to the burner;pan,,which latter is situated directly in frontofthe charging-opening E of the furnace, but does'not extendinside the fire-box.

" From the boiler A a steam -pipe 7 extends to the'service-tank 2, passing into the same, Fig. 4, and out again, so as to form a somewhatU-shaped internal coil 7 in the body of oil in order to warm it, but not vaporize it. After leaving the service-tank the pipe 7 extends to the furnace-front adjacent to the burner-pan 5, where it is. provided with a nozzle 8, disposed directly over the burnerpan and directed toward the opening into the fire-box. This steam-pipe7 will have in it at any suitable point a stop-valve, as 9, to regulate or cut off the flow of steam..-

The operation is as follows: Oil is permitted to flow to the burner-pan 5 by opening the stop-valve 6 more or less, and when the oil appears in the pan it is ignited. Steam is now admitted to the nozzle 8, and the flame from the burning oil is thus blown into the fire-box, as indicated. The result is a perfect combustion of the carbon element in the oil and intense heat in the fire-box, although the heat directly at the burner-pan will not be so great as to injure the latter materially or at all. Preferably the burner-pan will be flared at its outer end, as indicated in Fig. 3, and preferably, also, the jet-nozzle S will also be flattened at its extremity, as seen at 8 in Fig. 3, so as to produce a thin and laterallyspreading jet. I have shown but one burner device at the charging-door of the furnace, but obviously there may be more than one. If the furnace be wide and have double doors or more than one door, there should be more than one burner device. This is a mere matter of duplication and will require no special illustration.

In Figs. 2 and 3 I have shown the nozzle 8, jointed at 8 to the steam-pipe 7, so that the nozzle may be moved up or down in a vertical plane in order to adapt it to the flame from the burnerpan, and this is desirable, although my invention is not necessarily limited thereto. In Fig. 5 I have not shown this means of adjustment.

lVhere the plates of the boiler are directly exposed to the flame over the fire-box, the means shown in Figs. 1 and 2 may be employed to protect them from the injurious effect of the heat, which will be especially intense at this point. A jet or jets of steam, and preferably exhaust-steam from the engine, is admitted through the boiler-front just below the lower plates of the boiler. This is effected by a jet-nozzle 10, supplied from a pipe 11. The nozzle directs the jet inward substantially parallel to the lower plates of the boiler, and it interposes measurably between the said plates and the hot flames from the oil, being in a greater or lesser degree decomposed and combined with the carbon from the oil in passing across the upper part of the fire-box. In Fig. 2 the pipe 11 is represented as supplying a cross-pipe 12, from which a plurality of jet-nozzles 10 may be directed into the fire-box. To avoid burning off the nozzles 10, there may be a course of fire-tiles 13 across the upper part of the fire-box at the front thereof. These protect the nozzle or nozzles 10.

Fig. 5 shows a construction of the fire-box of a furnace, where an arch of fire-tiles 14; is interposed between the fire-box and the shell of the boiler to protect the latter.

Crude petroleum of the cheapest grade may be employed for fuel, and the perfect combnstion attained insures great economy.

This invention is adapted for locomotive furnaces, as well as stationary-boiler furnaces, and the freedom from smoke and steam adapts it particularly well for locomotives used on roads having tunnels.

It must be understood that this invention relates to and is restricted to the disposal of the pan for the combustible liquid and the steam-jet nozzle entirely outside of or exterior to the furnace. It is a common practice in oil-burners for furnaces to employ steam as an agent for spraying the oil before ignition, and steam-jets have been employed for driving the flames from the burning oil in the furnace-chamber or fire-box back toward the bridge-wall; but in all of these constructions and devices, so far as known, the parts have been to a greater or lesser extent exposed to the intense heat Within the fire-box. In the construction embodied herein it will be obvious that no material injury to the burner devices can come from the heat in the firebox.

Having thus described my invention, I claim- 1. An appliance for the purpose specified, comprising a shallow open-topped oil-pan sup ported on the upper end of an oil-supply pipe, said pan having a broad, upwardly-inclined front end or lips, means for supplying oil in regulated quantity to said pan, a source of steam, and a jet-nozzle supplied therefrom, said steam-jet nozzle being in position to direct a jet of steam across and adjacent to the upper surface of said pan.

2. An appliance for the purpose specified comprising an upright oil-supply pipe 4:, an open-topped oil-pan 5 mounted at its rear end on the upper end of said pipe, said pan having a basin which is deepest at its rear end where the oil enters, and becomes gradually shallower toward its broader front end, an upright steam-supply pipe 7, and a steam-jet nozzle hinged to the upper end of the pipe 7, said nozzle being directed forward over the oil-pan from the rear of the latter.

3. The combination with a service-tank for containing a liquid hydrocarbon, an open oilpan, a pipe connecting said pan with said service-tank for supplying the liquid to the pan, and means for exerting a pressure on the liquid in the said tank sufficient to supply the pan, of a source of steam, a steam-nozzle above the burner-pan and so placed as to direct a jet of steam across and over the pan, as team-supply pipe connecting the source of steam with said nozzle for supplying it, said steam-pipe extending through the said service-tank, and a furnace having its chargingdoor situated in front of the steam-nozzle, substantially as set forth.

4. The combination with a furnace, and a steam generator or boiler, of an open-topped oil-pan situated in front of the charging-door of the furnace, means for supplying a combustible fluid to said pan, a steam-jet nozzle so placed as to send a jet of steam over said pan and into the furnace, and means for supplying steam to said jet-nozzle, whereby the flame from the ignited fluid at the pan is driven into the fire-box of the furnace.

5. The combination with a boiler-furnace and boiler, of means wholly exterior to the furnace of producing flame and forcing it into the fire-box of the latter for heating the boiler, and means for protecting the lower plates of my name this 24th day of March, 1902, in the presence of two subscribing witnesses.

the boiler comprising a cross-pipe 12 in'front ofthe furnace and supplied with steam, nozzles 10 on said pipe and extendin thl'ou h the furnace-front, and a course of ti re-tilesiii JOESEPH BERG 5 which house the ends of said nozzles, sub- Witnesses:

stantially as set forth. HENRY 'OONNETT,

In witness whereof I have hereunto signed PETER A. ROSS. 

